Traction-wheel.



L. 0. a A. mason & S JO HNSON. f

fl'BAOTION WHEEL.

nrmori'xon mum rm. 2, 1910.

964,279. Patented July 12, 1910.

awn newton Z0uw 0. Lennon,

firra ldR.Larsam @WredfahnSom arm, i

UNITED STATES PATENT OFFICE.

LOUIS 0. LARSON, ARVID R. LARSON, AND SIGFRED JOHNSON, OF EL CAMPO, TEXAS.

TRACTION-WHEEL.

Specification of Letters Patent.

Patented July 12, 1910.

Application filed February 2, 1910. Serial No. 541,574.

To all whom it may concern:

Be it known that we, LoUIs O. LARSON, Anvil) R. LARSON, and SIGFRED JOHNSON, citizens of the United States, residing at El Campo, in the county of Wharton and State of Texas, have invented new and useful Improvements in Traction-Wheels, of which the following is a specification.

This invention relates to im rovements in wheels and hasparticular re arence to improving wheels such as are employed on traction en ines.

It is wel -known that the driving wheels of a traction engine are provided on the outer faces 'of their rims with transversely disposed lugs designed to embed themselves in the ground during the movement of the wheels and slipping and skidding to a certam extent prevented. It has been found in practice however, that this method of providing traction wheels with transversely disposed lugs does not always prevent skidding and slipping, and especially when the engine is passing over muddy and sandy ground; this is due to the fact that the mud and sand soon fills the spaces between the lugs with the result that the outer surface of the wheel is rendered practically smooth.

The present invention therefore aims to remedy this defect in the construction of traction wheels by providing a wheel including a pair of spaced rims, connected by a plurality of cross bars having sockets and lugs secured in the sockets corresponding to the transversely arranged lugs on the ordinarv traction wheel.

\Vith these and other objects in view, which will more fully hereinafter appear, the present invention consists in certain novel details of construction and arrangement of parts, hereinafter fully described, illustrated in the accompanying drawings and lllUl.'(' particularly pointed out in the aplwndcd claims; it being understood that various hanges in the form, propm'tiomsize, and niinomh-iails of the device may be made, within the scope of the appended claims, wiihool departing from the spirit or sacrificing any of the advantages of the invention.

In the accompanying drawings; forming a part of the spin-nitration;- Figure l is a side elevation of, one half of a traction wheel cnllsil'in'lwl n accordance with our invc'nllllll.

l"ig."' f is a sectional plan' ricw of the 1. Fig. 3 is a fragmentary perspective of thc r nns and also showing a cross bar in position and connecting sald rims.

Similar numerals of reference are e1nploycd to designate corresponding parts throughout.

The hub of the wheel is designated by the nun'ieral 5 and corresponds to the construction of the ordinary traction wheel hub with the exception that it is approximately twice the length of the latter. Formed on either side of the middle of the hub are annular shoulders (5 and 7 and similarly formed shoulders 8 and 9 are located at the opposite ends of the hub. These shoulders are provided with a plurality of spaced interiorly threaded openings which receive the lower ends of the spokes 10. As usual the spokes 10 arc of metal and extending oblique to the longitudinal axis of the hub.

The rims are designated by the numerals 11 and 12 and have openings for the reception of the spokes 10. By reference now to Figs. 2 and 3 it will be seen that each rim corresponds in width approximately to one-third the length of the hub, so that when the rims are connected with the hub by means of the spokes.l0, a space equal to the width of one rim will exist between the rims.

The rims are connected by means of a plurality of cross liars designated in general by tho numerals l3. 'lhesc members are spaced at equal intervals on the inner sur faces oi the rims, the space between two adjacent cross bars corresponding to the distance between the upper ends of two adjacent spokes, or approximately so. The cross bars correspond in length to the distance between the opposite outer sides of the rims and adjacent to their opposite end are provided on their opposite flat faces with lateral flanges .14 and 15. It might be stated that the cross bars are slightly curved to conform to the configuration of the rims, and in length those flanges correspond approximately to the widths of the rims. The flanges are secured to the rims by bolts or rivets It as clearly shown in Figs. 2 and 3.

Formed in the medial portions of the cross bars and between the rims 11 and 12 are transverse sockets 17. These sockets correspond in length approximately to the dis tancc between the opposed inner sides of the rims, and (\itdtl pcrpcmlicular lo the rsIIIN approximahdy on the linc u 2 of dig. I said rims.

W but will subsequently be termed teeth are designated in general by the numeral 15. These teeth are formed of single pieces ol inetal oblong in contour and rectangular in cross section and oi. greater width than the crow bill's 1.3. The teeth are of a size to loosely lit within the sockets 17 and are provided with transverse openings adapted to uline with similar openings 19 formed in the cross bare and perpendicular to the Stlt'lttlh' 17, these alining openings receiving lgolts 24) or other equivalents, by means of which the teeth are reinovabiy secured in the sockets. By reference now to Fig. 2 it will be seen that the teeth are provided with a plurality of spaced openings, whereby they may be secured at ditt'erent point-e in-thc sockets and thus enable their outer sides to he positioned at various distances from the outer Htllftltitfi of the rims, according to the character of the ground over which the wheel is passing.

From the foregoing it can be seen that; we have provided a. device which is coniparatively simple in struct-titre and inexpensive to inai'iutactnre, ei'nbodying few parts and these so arranged thatthe danger. of derangement will he reduced to a minimum.

\Ve claim 1. A traction wheel including spaced rims, cross liars connecting said rims and having sockets, and teeth adj ustably secured in said sockets.

2. A traction Wheel including'spaced rims, cross bars connecting said rims and having sockets located between said rims and arranged perpendicular to the rims, teeth arranged in the sockets, and means for adjustably securing the said teeth whereby their outer edges may be secured at various distances from the surfaces of said rims.

3. A traction Wheel including an elongated hub, a pair of spaced rims arranged adjacent to the opposite ends of said hub, spokes connecting the rims with the hubs, cross bars connecting the rims and having sockets located between the rims and perpendicular to the latter, a plurality of ob long teeth of greater Width than the widths of the cross bars arranged in the sockets, and means: for adj uetably securing the teeth \vhcrel'ry their outer sides, may be positioned at various distances from the surfaces of the rims.

In testimony. whereof we aflix our signatures in presence of two Witnesses.

LOUIS O. LARSON. ARVID R. LARSON. SIGFRED JOHNSON.

ll'itnesses En MALANDER, IIARRY SwANsoN. 

